the inflation rate and time value of money are not considered.
CT ¼ Cs as þ Cw aw þ CB BC þX
n
i¼1
Csh Ei ð6Þ
In addition, a total of US $500 battery charger cost, and 5% installation,
maintenance and engineering cost of the initial hardware is
also added into the total system cost for an assumed 20-yearlifetime